Demulsifiers are chemical additives used to break water-in-oil emulsions, such as those found in crude oil during production. They play a crucial role in crude oil dehydration by facilitating the separation of water from the oil phase.

Factors Affecting Demulsifier Efficiency

• Crude Oil Composition: The type and concentration of natural surfactants, asphaltenes, and paraffins in the oil affect the choice of demulsifier.
• Temperature: Higher temperatures generally enhance demulsifier effectiveness by reducing viscosity and promoting faster separation.
• Water Content: The amount and salinity of the water can also influence the demulsifier’s performance.
• Mixing: Proper mixing of the demulsifier in the crude oil emulsion is important to ensure efficient breaking of the emulsion.

Product Overview

This product is a reverse emulsifier, a composite polymer water treatment agent characterized by numerous positively charged groups along its molecular chain. It is a highly effective cationic polymer. With its powerful reverse emulsification capability, it can significantly lower the interfacial tension of oil-in-water (W/O) or water-in-oil (O/W) emulsions. This process destabilizes the emulsions by neutralizing the repulsive and attractive forces of oils or colloidal particles in wastewater, resulting in the formation of flocs. Through further chemical bridging, it facilitates the separation of oil and water, as well as the removal of harmful impurities in the wastewater, achieving the goals of oil recovery and wastewater purification. The emulsifier is highly effective in breaking water-in-oil emulsions, reducing oil-water separation time, and is water-soluble and effective across a broad pH range.

Applications

• Separation of oilfield produced water and polymer-laden wastewater in petroleum extraction
• Demulsification of emulsified liquids and cutting fluid wastewater from mechanical machining and metal manufacturing
• Demulsification of emulsified liquids and alkaline wastewater from steel mills
• Oil-water separation of coking wastewater from coking plants
• Oil-water separation of animal and vegetable oil wastewater from leather and fur processing
• Removal of organic substances from high-concentration organic wastewater in chemical industries

Physical and Chemical Properties

Usage Instructions

Add the product directly to the wastewater either in its original form or diluted, then stir and allow it to settle. For optimal results, use in conjunction with PAC and PAM. The ideal pH range for application is 5-12, with pronounced demulsification and flocculation effects around pH=9. The dosing point is typically selected in the rapid mixing tank of the sewage treatment process. The dosage varies depending on the type of wastewater, generally ranging from 50-1000ppm.

Safety, Packaging, and Storage

• Safety: Avoid direct contact with eyes and skin. In case of contact, rinse immediately with plenty of water.
• Packaging: Available in 25kg and 200kg plastic drums, or as per user requirements.
• Storage: Store in a cool place. The product has a shelf life of one year.